<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
    *{
        margin:0;
        padding:0;
    }
    html,body{
        width:100%;
        height:100%;
        text-align: center;
        line-height: 100%;
        background:rgb(233, 72, 102);
    }
    .spinner {
  width: 40px;
  height: 40px;
  margin: 100px auto;
  background-color: #333;

  border-radius: 100%;  
  -webkit-animation: sk-scaleout 1.0s infinite ease-in-out;
  animation: sk-scaleout 1.0s infinite ease-in-out;
}

@-webkit-keyframes sk-scaleout {
  0% { -webkit-transform: scale(0) }
  100% {
    -webkit-transform: scale(1.0);
    opacity: 0;
  }
}

@keyframes sk-scaleout {
  0% { 
    -webkit-transform: scale(0);
    transform: scale(0);
  } 100% {
    -webkit-transform: scale(1.0);
    transform: scale(1.0);
    opacity: 0;
  }
}
    </style>
</head>
<body>
    <div class="spinner"></div>
</body>
</html>